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If you get the right size for the the width and the correct offset for your car, along with the correct tire sizes, you will have no issues running 18" or 19" wheels. If you want to run square fitment we recommend an 18x8.5 or 19x8.5 with offset ranging from ET35 to ET40. If you want to run staggered, the fronts would be the same, and the rears would be either an 18x9.5 or 19x9.5 with an offset of ET45. For tire sizes you want to run a 235 tire on an 8.5" wide wheel, and a 255 on a 9.5" wide wheel, with the respective profile depending on the diameter of the wheels.